Hi i am new to this community. I recently bought an eclipse and started fixing it up, making sure everything is working and in good shape. I came across a large hole in my exhaust that has rusted. I dont know if it goes all the way through or not. I bought a manual to show what component it is and no luck. Here are some images. Any ideas what part this is? i am also looking to replace the cat-back, but need to know if that is a cat or muffler or resonator. Also how many cats does it have? and any full exhaust diagrams? Thanks!